From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 78CA537B3FE; Mon, 8 Jun 2026 12:13:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780920797; cv=none; b=V2xKwGX/XRyuSYVKGrIke5DIiBf5orP52FaKGxz6KHGiZmOBXAFLMAQfh+WBu6xlsUP7Oa0BC23xhQn5COvljXlanq7VW9JJHoTotLxkzgRMz5B+XnFBOBweBd+nVYhy7anr1QAxIGk/vRjYkFHUNhPV7b+ahRFK3dGVzrda0/c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780920797; c=relaxed/simple; bh=L+zr77B027OHlzOwUjS9LRDnJMeSuc4x34wWiodYnRA=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=BY6VlzTqBzoLBtG4Fbuno4KTIhwOKXCEVMzyACSAq7M13ZaAvntjKifyCHzG35doI9JSULwR4IM9akd+uteE2DzcRq3rLxerhBNQHxTpTY9uw4iF0ztVfFmXQSmCSd46YXH850bcXQC7IPGX9+cjb3aS7vTrjSh9gomzI107f+Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=b7dSrJAS; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="b7dSrJAS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72A0E1F00898; Mon, 8 Jun 2026 12:13:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780920796; bh=9nvjedUpTUX47NUQgMQks1dJGD4zXZNRmKkqCVNTyb4=; h=From:To:Cc:In-Reply-To:References:Subject:Date; b=b7dSrJASSbMXmLXFUuDpjV5mh5hGSDL0FqlbLGdOHUznaljCvXT3dIphbTDpkUyon hC9KoKnOZtFtGDzRAAwnYlOWSahreRNUffg/CQWCCWdwZbNaY3oo9wN3EzSDWujZTG Wk3gO4py4c4AMxNQ7ELNIfhCvaCsj7ptt0hU2K8tzvMNQEBBDtGC3boHIWx1/hf72s WLe/ZxNdScMmDcJfHpgdbzJk8RnC+D/Eor0/rPUPv8aVQSxYGhbEkJmH0SGTQ/yBE/ RLn6cQaMCfCF083dx2Y+/iLA3CawU+Uck7xZhaD/D2eEBjtDZpfxkfqvRLJtxL4sgh x+S2+PQ4cx6BQ== From: Vinod Koul To: tglx@kernel.org, John Madieu Cc: Frank.Li@kernel.org, claudiu.beznea.uj@bp.renesas.com, biju.das.jz@bp.renesas.com, geert+renesas@glider.be, cosmin-gabriel.tanislav.xa@renesas.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, john.madieu@gmail.com In-Reply-To: <20260525110750.4020112-1-john.madieu.xa@bp.renesas.com> References: <20260525110750.4020112-1-john.madieu.xa@bp.renesas.com> Subject: Re: [PATCH v4 0/2] Add DMA ACK signal routing for RZ/V2H family Message-Id: <178092079307.96550.9925462090761726451.b4-ty@kernel.org> Date: Mon, 08 Jun 2026 17:43:13 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.13.0 On Mon, 25 May 2026 11:07:48 +0000, John Madieu wrote: > Some peripherals on RZ/V2H, RZ/V2N, and RZ/G3E SoCs require explicit > DMA ACK signal routing through the ICU for level-based DMA handshaking. > > Rather than encoding the ACK signal number as a second DMA specifier > cell, derive it in-driver from the MID/RID request number using > arithmetic formulas based on ICU Table 4.6-28 (3 linear peripheral > groups). It must also be noted that DMA ack register is located in > the ICU block > > [...] Applied, thanks! [1/2] irqchip/renesas-rzv2h: Add DMA ACK signal routing support commit: 5d596b9139f59ce412f41283baadaf809936eaf4 [2/2] dma: sh: rz-dmac: Add DMA ACK signal routing support commit: c0a207898fca8cbb4fad0da1e950d477b6afbf64 Best regards, -- ~Vinod